Ananta, Prayudha and Ciptawaty, Ukhti and jayanti, dwi (2020) The Fish Demand at Fish Auction Side in Lampung: Implementation of The Quadratic Almost Deal Demand System ( QUAIDS) Model. The Future Opportunities and Challenges of Business in Digital Era 4.0. pp. 104-107. ISSN Isbn: 978-0-367-42594-4